1. (

• lens ,
• lense ,
• lens_system

) a transparent optical device used to converge or diverge transmitted light and to form images ;

2. (

• Lens ,
• genus_Lens

) genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils ;

3. (

• lens

) (metaphor) a channel through which something can be seen or understood; "the writer is the lens through which history can be seen" ;

4. (

• lens ,
• crystalline_lens ,
• lens_of_the_eye

) biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focus light on the retina ;

5. (

• lens ,
• electron_lens

) electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons ;